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black/brown stuff on corals

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bmac2 View Drop Down
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    Posted: July 24 2014 at 10:08am
I have a couple of corals that are suddenly struggling and they have a "black" or brownish red on them and it seems to be killing/hurting them.  My wife just took a pic and it is hard to see but it is a duncan that was doing awesome and putting on heads and now has that on it and has shrunk.

I am doing a iodine dip of several of my fungias to make sure they don't have a fungus.  Any ideas what it might be?  I wish I could get a better pic!!

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DMower View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DMower Quote  Post ReplyReply Direct Link To This Post Posted: July 24 2014 at 11:44am
Likely a type of cyano bacteria.
150 gal reef with 50 gal sump. Reef Octopus DCS-200 Skimmer. AI Sol Blues.
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Mark Peterson View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mark Peterson Quote  Post ReplyReply Direct Link To This Post Posted: July 24 2014 at 1:12pm
I believe Darren is right. Ross Bagshaw just lost a Trachophyllia and I almost lost a German Blue Montipora Digitata to what sounds like the same problem Cyanobacteria. Unfortunately, it didn't work to stir the sand to disturb the Cyano and let good bacteria take over. Both our systems have plenty of good growing Macroalgae, so the problem was not just excess nutrients.

The remedy seems to be Chemiclean, followed by a dose of a bottled bacteria product like Dr. Tims or Microbacter 7, etc. I am starting to appreciate these products more and more.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote DLindquist Quote  Post ReplyReply Direct Link To This Post Posted: July 24 2014 at 1:14pm
Welcome to the 21st Century Mark. Glad to have you on the train. You realize there's no going back now?
A government strong enough to give you everything you want, is powerful enough to take everything you have.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mark Peterson Quote  Post ReplyReply Direct Link To This Post Posted: July 24 2014 at 2:13pm
LOL
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DMower Quote  Post ReplyReply Direct Link To This Post Posted: July 24 2014 at 2:13pm
First a skimmer and now chemiclean? What? Oh the
Insanity!   
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bryce Quote  Post ReplyReply Direct Link To This Post Posted: July 24 2014 at 5:49pm
I used prodibio bioclean for a month and i have not had cyano since and I had it pretty bad, its simply a bacteria and a food source which in theory builds a bacteria population that out competes the cyano - I was skeptical it would work but it did for me. I did stop dosing it after they cyano was gone and it has not returned and it has been 4 months. It was recommended by Nikki. here is a drama filled thread on it http://www.utahreefs.com/forum/forum_posts.asp?TID=69890&title=algae-on-sand-never-ending



Edited by Bryce - July 24 2014 at 5:54pm
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